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Diffstat (limited to 'PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c')
-rw-r--r--PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c406
1 files changed, 222 insertions, 184 deletions
diff --git a/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c b/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c
index ebc2f3aa8b..0fbfa4bcee 100644
--- a/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c
+++ b/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c
@@ -17,12 +17,12 @@ extern UINTN mRtcTargetRegister;
//
// Days of month.
//
-UINTN mDayOfMonth[] = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
+UINTN mDayOfMonth[] = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
//
// The name of NV variable to store the timezone and daylight saving information.
//
-CHAR16 mTimeZoneVariableName[] = L"RTC";
+CHAR16 mTimeZoneVariableName[] = L"RTC";
/**
Compare the Hour, Minute and Second of the From time and the To time.
@@ -38,8 +38,8 @@ CHAR16 mTimeZoneVariableName[] = L"RTC";
**/
INTN
CompareHMS (
- IN EFI_TIME *From,
- IN EFI_TIME *To
+ IN EFI_TIME *From,
+ IN EFI_TIME *To
);
/**
@@ -53,8 +53,8 @@ CompareHMS (
**/
BOOLEAN
IsWithinOneDay (
- IN EFI_TIME *From,
- IN EFI_TIME *To
+ IN EFI_TIME *From,
+ IN EFI_TIME *To
);
/**
@@ -68,7 +68,7 @@ IsWithinOneDay (
STATIC
UINT8
IoRtcRead (
- IN UINTN Address
+ IN UINTN Address
)
{
IoWrite8 (
@@ -89,8 +89,8 @@ IoRtcRead (
STATIC
VOID
IoRtcWrite (
- IN UINTN Address,
- IN UINT8 Data
+ IN UINTN Address,
+ IN UINT8 Data
)
{
IoWrite8 (
@@ -111,7 +111,7 @@ IoRtcWrite (
STATIC
UINT8
MmioRtcRead (
- IN UINTN Address
+ IN UINTN Address
)
{
MmioWrite8 (
@@ -132,8 +132,8 @@ MmioRtcRead (
STATIC
VOID
MmioRtcWrite (
- IN UINTN Address,
- IN UINT8 Data
+ IN UINTN Address,
+ IN UINT8 Data
)
{
MmioWrite8 (
@@ -154,7 +154,7 @@ MmioRtcWrite (
STATIC
UINT8
RtcRead (
- IN UINTN Address
+ IN UINTN Address
)
{
if (FeaturePcdGet (PcdRtcUseMmio)) {
@@ -175,8 +175,8 @@ RtcRead (
STATIC
VOID
RtcWrite (
- IN UINTN Address,
- IN UINT8 Data
+ IN UINTN Address,
+ IN UINT8 Data
)
{
if (FeaturePcdGet (PcdRtcUseMmio)) {
@@ -216,6 +216,7 @@ PcRtcInit (
if (!EfiAtRuntime ()) {
EfiAcquireLock (&Global->RtcLock);
}
+
//
// Initialize RTC Register
//
@@ -254,8 +255,10 @@ PcRtcInit (
if (!EfiAtRuntime ()) {
EfiReleaseLock (&Global->RtcLock);
}
+
return EFI_DEVICE_ERROR;
}
+
//
// Get the Time/Date/Daylight Savings values.
//
@@ -285,16 +288,16 @@ PcRtcInit (
// stored in NV variable during previous boot.
//
DataSize = sizeof (UINT32);
- Status = EfiGetVariable (
- mTimeZoneVariableName,
- &gEfiCallerIdGuid,
- NULL,
- &DataSize,
- &TimerVar
- );
+ Status = EfiGetVariable (
+ mTimeZoneVariableName,
+ &gEfiCallerIdGuid,
+ NULL,
+ &DataSize,
+ &TimerVar
+ );
if (!EFI_ERROR (Status)) {
- Time.TimeZone = (INT16) TimerVar;
- Time.Daylight = (UINT8) (TimerVar >> 16);
+ Time.TimeZone = (INT16)TimerVar;
+ Time.Daylight = (UINT8)(TimerVar >> 16);
} else {
Time.TimeZone = EFI_UNSPECIFIED_TIMEZONE;
Time.Daylight = 0;
@@ -307,6 +310,7 @@ PcRtcInit (
if (!EFI_ERROR (Status)) {
Status = RtcTimeFieldsValid (&Time);
}
+
if (EFI_ERROR (Status)) {
//
// Report Status Code to indicate that the RTC has bad date and time
@@ -315,15 +319,15 @@ PcRtcInit (
EFI_ERROR_CODE | EFI_ERROR_MINOR,
(EFI_SOFTWARE_DXE_RT_DRIVER | EFI_SW_EC_BAD_DATE_TIME)
);
- Time.Second = RTC_INIT_SECOND;
- Time.Minute = RTC_INIT_MINUTE;
- Time.Hour = RTC_INIT_HOUR;
- Time.Day = RTC_INIT_DAY;
- Time.Month = RTC_INIT_MONTH;
- Time.Year = PcdGet16 (PcdMinimalValidYear);
- Time.Nanosecond = 0;
- Time.TimeZone = EFI_UNSPECIFIED_TIMEZONE;
- Time.Daylight = 0;
+ Time.Second = RTC_INIT_SECOND;
+ Time.Minute = RTC_INIT_MINUTE;
+ Time.Hour = RTC_INIT_HOUR;
+ Time.Day = RTC_INIT_DAY;
+ Time.Month = RTC_INIT_MONTH;
+ Time.Year = PcdGet16 (PcdMinimalValidYear);
+ Time.Nanosecond = 0;
+ Time.TimeZone = EFI_UNSPECIFIED_TIMEZONE;
+ Time.Daylight = 0;
}
//
@@ -348,15 +352,15 @@ PcRtcInit (
// When wakeup time is disabled and invalid, reset wakeup time register to valid state
// but keep wakeup alarm disabled.
//
- Time.Second = RTC_INIT_SECOND;
- Time.Minute = RTC_INIT_MINUTE;
- Time.Hour = RTC_INIT_HOUR;
- Time.Day = RTC_INIT_DAY;
- Time.Month = RTC_INIT_MONTH;
- Time.Year = PcdGet16 (PcdMinimalValidYear);
- Time.Nanosecond = 0;
- Time.TimeZone = Global->SavedTimeZone;
- Time.Daylight = Global->Daylight;;
+ Time.Second = RTC_INIT_SECOND;
+ Time.Minute = RTC_INIT_MINUTE;
+ Time.Hour = RTC_INIT_HOUR;
+ Time.Day = RTC_INIT_DAY;
+ Time.Month = RTC_INIT_MONTH;
+ Time.Year = PcdGet16 (PcdMinimalValidYear);
+ Time.Nanosecond = 0;
+ Time.TimeZone = Global->SavedTimeZone;
+ Time.Daylight = Global->Daylight;
//
// Acquire RTC Lock to make access to RTC atomic
@@ -364,14 +368,16 @@ PcRtcInit (
if (!EfiAtRuntime ()) {
EfiAcquireLock (&Global->RtcLock);
}
+
//
// Wait for up to 0.1 seconds for the RTC to be updated
//
Status = RtcWaitToUpdate (PcdGet32 (PcdRealTimeClockUpdateTimeout));
if (EFI_ERROR (Status)) {
if (!EfiAtRuntime ()) {
- EfiReleaseLock (&Global->RtcLock);
+ EfiReleaseLock (&Global->RtcLock);
}
+
return EFI_DEVICE_ERROR;
}
@@ -391,13 +397,14 @@ PcRtcInit (
if (!EfiAtRuntime ()) {
EfiReleaseLock (&Global->RtcLock);
}
+
return EFI_DEVICE_ERROR;
}
//
// Inhibit updates of the RTC
//
- RegisterB.Bits.Set = 1;
+ RegisterB.Bits.Set = 1;
RtcWrite (RTC_ADDRESS_REGISTER_B, RegisterB.Data);
//
@@ -419,6 +426,7 @@ PcRtcInit (
if (!EfiAtRuntime ()) {
EfiReleaseLock (&Global->RtcLock);
}
+
return EFI_SUCCESS;
}
@@ -451,24 +459,27 @@ PcRtcGetTime (
//
if (Time == NULL) {
return EFI_INVALID_PARAMETER;
-
}
+
//
// Acquire RTC Lock to make access to RTC atomic
//
if (!EfiAtRuntime ()) {
EfiAcquireLock (&Global->RtcLock);
}
+
//
// Wait for up to 0.1 seconds for the RTC to be updated
//
Status = RtcWaitToUpdate (PcdGet32 (PcdRealTimeClockUpdateTimeout));
if (EFI_ERROR (Status)) {
- if (!EfiAtRuntime ()) {
- EfiReleaseLock (&Global->RtcLock);
- }
+ if (!EfiAtRuntime ()) {
+ EfiReleaseLock (&Global->RtcLock);
+ }
+
return Status;
}
+
//
// Read Register B
//
@@ -477,12 +488,12 @@ PcRtcGetTime (
//
// Get the Time/Date/Daylight Savings values.
//
- Time->Second = RtcRead (RTC_ADDRESS_SECONDS);
- Time->Minute = RtcRead (RTC_ADDRESS_MINUTES);
- Time->Hour = RtcRead (RTC_ADDRESS_HOURS);
- Time->Day = RtcRead (RTC_ADDRESS_DAY_OF_THE_MONTH);
- Time->Month = RtcRead (RTC_ADDRESS_MONTH);
- Time->Year = RtcRead (RTC_ADDRESS_YEAR);
+ Time->Second = RtcRead (RTC_ADDRESS_SECONDS);
+ Time->Minute = RtcRead (RTC_ADDRESS_MINUTES);
+ Time->Hour = RtcRead (RTC_ADDRESS_HOURS);
+ Time->Day = RtcRead (RTC_ADDRESS_DAY_OF_THE_MONTH);
+ Time->Month = RtcRead (RTC_ADDRESS_MONTH);
+ Time->Year = RtcRead (RTC_ADDRESS_YEAR);
//
// Release RTC Lock.
@@ -494,8 +505,8 @@ PcRtcGetTime (
//
// Get the variable that contains the TimeZone and Daylight fields
//
- Time->TimeZone = Global->SavedTimeZone;
- Time->Daylight = Global->Daylight;
+ Time->TimeZone = Global->SavedTimeZone;
+ Time->Daylight = Global->Daylight;
//
// Make sure all field values are in correct range
@@ -504,6 +515,7 @@ PcRtcGetTime (
if (!EFI_ERROR (Status)) {
Status = RtcTimeFieldsValid (Time);
}
+
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
@@ -539,8 +551,8 @@ PcRtcGetTime (
**/
EFI_STATUS
PcRtcSetTime (
- IN EFI_TIME *Time,
- IN PC_RTC_MODULE_GLOBALS *Global
+ IN EFI_TIME *Time,
+ IN PC_RTC_MODULE_GLOBALS *Global
)
{
EFI_STATUS Status;
@@ -551,6 +563,7 @@ PcRtcSetTime (
if (Time == NULL) {
return EFI_INVALID_PARAMETER;
}
+
//
// Make sure that the time fields are valid
//
@@ -567,14 +580,16 @@ PcRtcSetTime (
if (!EfiAtRuntime ()) {
EfiAcquireLock (&Global->RtcLock);
}
+
//
// Wait for up to 0.1 seconds for the RTC to be updated
//
Status = RtcWaitToUpdate (PcdGet32 (PcdRealTimeClockUpdateTimeout));
if (EFI_ERROR (Status)) {
- if (!EfiAtRuntime ()) {
- EfiReleaseLock (&Global->RtcLock);
- }
+ if (!EfiAtRuntime ()) {
+ EfiReleaseLock (&Global->RtcLock);
+ }
+
return Status;
}
@@ -594,35 +609,36 @@ PcRtcSetTime (
}
} else {
TimerVar = Time->Daylight;
- TimerVar = (UINT32) ((TimerVar << 16) | (UINT16)(Time->TimeZone));
- Status = EfiSetVariable (
- mTimeZoneVariableName,
- &gEfiCallerIdGuid,
- EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
- sizeof (TimerVar),
- &TimerVar
- );
+ TimerVar = (UINT32)((TimerVar << 16) | (UINT16)(Time->TimeZone));
+ Status = EfiSetVariable (
+ mTimeZoneVariableName,
+ &gEfiCallerIdGuid,
+ EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
+ sizeof (TimerVar),
+ &TimerVar
+ );
}
if (EFI_ERROR (Status)) {
if (!EfiAtRuntime ()) {
EfiReleaseLock (&Global->RtcLock);
}
+
return EFI_DEVICE_ERROR;
}
//
// Read Register B, and inhibit updates of the RTC
//
- RegisterB.Data = RtcRead (RTC_ADDRESS_REGISTER_B);
- RegisterB.Bits.Set = 1;
+ RegisterB.Data = RtcRead (RTC_ADDRESS_REGISTER_B);
+ RegisterB.Bits.Set = 1;
RtcWrite (RTC_ADDRESS_REGISTER_B, RegisterB.Data);
//
// Store the century value to RTC before converting to BCD format.
//
if (Global->CenturyRtcAddress != 0) {
- RtcWrite (Global->CenturyRtcAddress, DecimalToBcd8 ((UINT8) (RtcTime.Year / 100)));
+ RtcWrite (Global->CenturyRtcAddress, DecimalToBcd8 ((UINT8)(RtcTime.Year / 100)));
}
ConvertEfiTimeToRtcTime (&RtcTime, RegisterB);
@@ -632,7 +648,7 @@ PcRtcSetTime (
RtcWrite (RTC_ADDRESS_HOURS, RtcTime.Hour);
RtcWrite (RTC_ADDRESS_DAY_OF_THE_MONTH, RtcTime.Day);
RtcWrite (RTC_ADDRESS_MONTH, RtcTime.Month);
- RtcWrite (RTC_ADDRESS_YEAR, (UINT8) RtcTime.Year);
+ RtcWrite (RTC_ADDRESS_YEAR, (UINT8)RtcTime.Year);
//
// Allow updates of the RTC registers
@@ -646,6 +662,7 @@ PcRtcSetTime (
if (!EfiAtRuntime ()) {
EfiReleaseLock (&Global->RtcLock);
}
+
//
// Set the variable that contains the TimeZone and Daylight fields
//
@@ -690,29 +707,32 @@ PcRtcGetWakeupTime (
//
if ((Enabled == NULL) || (Pending == NULL) || (Time == NULL)) {
return EFI_INVALID_PARAMETER;
-
}
+
//
// Acquire RTC Lock to make access to RTC atomic
//
if (!EfiAtRuntime ()) {
EfiAcquireLock (&Global->RtcLock);
}
+
//
// Wait for up to 0.1 seconds for the RTC to be updated
//
Status = RtcWaitToUpdate (PcdGet32 (PcdRealTimeClockUpdateTimeout));
if (EFI_ERROR (Status)) {
if (!EfiAtRuntime ()) {
- EfiReleaseLock (&Global->RtcLock);
+ EfiReleaseLock (&Global->RtcLock);
}
+
return EFI_DEVICE_ERROR;
}
+
//
// Read Register B and Register C
//
- RegisterB.Data = RtcRead (RTC_ADDRESS_REGISTER_B);
- RegisterC.Data = RtcRead (RTC_ADDRESS_REGISTER_C);
+ RegisterB.Data = RtcRead (RTC_ADDRESS_REGISTER_B);
+ RegisterC.Data = RtcRead (RTC_ADDRESS_REGISTER_C);
//
// Get the Time/Date/Daylight Savings values.
@@ -720,12 +740,12 @@ PcRtcGetWakeupTime (
*Enabled = RegisterB.Bits.Aie;
*Pending = RegisterC.Bits.Af;
- Time->Second = RtcRead (RTC_ADDRESS_SECONDS_ALARM);
- Time->Minute = RtcRead (RTC_ADDRESS_MINUTES_ALARM);
- Time->Hour = RtcRead (RTC_ADDRESS_HOURS_ALARM);
- Time->Day = RtcRead (RTC_ADDRESS_DAY_OF_THE_MONTH);
- Time->Month = RtcRead (RTC_ADDRESS_MONTH);
- Time->Year = RtcRead (RTC_ADDRESS_YEAR);
+ Time->Second = RtcRead (RTC_ADDRESS_SECONDS_ALARM);
+ Time->Minute = RtcRead (RTC_ADDRESS_MINUTES_ALARM);
+ Time->Hour = RtcRead (RTC_ADDRESS_HOURS_ALARM);
+ Time->Day = RtcRead (RTC_ADDRESS_DAY_OF_THE_MONTH);
+ Time->Month = RtcRead (RTC_ADDRESS_MONTH);
+ Time->Year = RtcRead (RTC_ADDRESS_YEAR);
Time->TimeZone = Global->SavedTimeZone;
Time->Daylight = Global->Daylight;
@@ -733,13 +753,13 @@ PcRtcGetWakeupTime (
// Get the alarm info from variable
//
DataSize = sizeof (EFI_TIME);
- Status = EfiGetVariable (
- L"RTCALARM",
- &gEfiCallerIdGuid,
- NULL,
- &DataSize,
- &RtcTime
- );
+ Status = EfiGetVariable (
+ L"RTCALARM",
+ &gEfiCallerIdGuid,
+ NULL,
+ &DataSize,
+ &RtcTime
+ );
if (!EFI_ERROR (Status)) {
//
// The alarm variable exists. In this case, we read variable to get info.
@@ -763,6 +783,7 @@ PcRtcGetWakeupTime (
if (!EFI_ERROR (Status)) {
Status = RtcTimeFieldsValid (Time);
}
+
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
@@ -792,18 +813,18 @@ PcRtcSetWakeupTime (
IN PC_RTC_MODULE_GLOBALS *Global
)
{
- EFI_STATUS Status;
- EFI_TIME RtcTime;
- RTC_REGISTER_B RegisterB;
- EFI_TIME_CAPABILITIES Capabilities;
+ EFI_STATUS Status;
+ EFI_TIME RtcTime;
+ RTC_REGISTER_B RegisterB;
+ EFI_TIME_CAPABILITIES Capabilities;
ZeroMem (&RtcTime, sizeof (RtcTime));
if (Enable) {
-
if (Time == NULL) {
return EFI_INVALID_PARAMETER;
}
+
//
// Make sure that the time fields are valid
//
@@ -811,6 +832,7 @@ PcRtcSetWakeupTime (
if (EFI_ERROR (Status)) {
return EFI_INVALID_PARAMETER;
}
+
//
// Just support set alarm time within 24 hours
//
@@ -819,31 +841,36 @@ PcRtcSetWakeupTime (
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
+
if (!IsWithinOneDay (&RtcTime, Time)) {
return EFI_UNSUPPORTED;
}
+
//
// Make a local copy of the time and date
//
CopyMem (&RtcTime, Time, sizeof (EFI_TIME));
-
}
+
//
// Acquire RTC Lock to make access to RTC atomic
//
if (!EfiAtRuntime ()) {
EfiAcquireLock (&Global->RtcLock);
}
+
//
// Wait for up to 0.1 seconds for the RTC to be updated
//
Status = RtcWaitToUpdate (PcdGet32 (PcdRealTimeClockUpdateTimeout));
if (EFI_ERROR (Status)) {
if (!EfiAtRuntime ()) {
- EfiReleaseLock (&Global->RtcLock);
+ EfiReleaseLock (&Global->RtcLock);
}
+
return EFI_DEVICE_ERROR;
}
+
//
// Read Register B
//
@@ -855,12 +882,12 @@ PcRtcSetWakeupTime (
//
// if the alarm is disable, record the current setting.
//
- RtcTime.Second = RtcRead (RTC_ADDRESS_SECONDS_ALARM);
- RtcTime.Minute = RtcRead (RTC_ADDRESS_MINUTES_ALARM);
- RtcTime.Hour = RtcRead (RTC_ADDRESS_HOURS_ALARM);
- RtcTime.Day = RtcRead (RTC_ADDRESS_DAY_OF_THE_MONTH);
- RtcTime.Month = RtcRead (RTC_ADDRESS_MONTH);
- RtcTime.Year = RtcRead (RTC_ADDRESS_YEAR);
+ RtcTime.Second = RtcRead (RTC_ADDRESS_SECONDS_ALARM);
+ RtcTime.Minute = RtcRead (RTC_ADDRESS_MINUTES_ALARM);
+ RtcTime.Hour = RtcRead (RTC_ADDRESS_HOURS_ALARM);
+ RtcTime.Day = RtcRead (RTC_ADDRESS_DAY_OF_THE_MONTH);
+ RtcTime.Month = RtcRead (RTC_ADDRESS_MONTH);
+ RtcTime.Year = RtcRead (RTC_ADDRESS_YEAR);
RtcTime.TimeZone = Global->SavedTimeZone;
RtcTime.Daylight = Global->Daylight;
}
@@ -879,13 +906,14 @@ PcRtcSetWakeupTime (
if (!EfiAtRuntime ()) {
EfiReleaseLock (&Global->RtcLock);
}
+
return EFI_DEVICE_ERROR;
}
//
// Inhibit updates of the RTC
//
- RegisterB.Bits.Set = 1;
+ RegisterB.Bits.Set = 1;
RtcWrite (RTC_ADDRESS_REGISTER_B, RegisterB.Data);
if (Enable) {
@@ -897,10 +925,10 @@ PcRtcSetWakeupTime (
RtcWrite (RTC_ADDRESS_HOURS_ALARM, RtcTime.Hour);
RegisterB.Bits.Aie = 1;
-
} else {
RegisterB.Bits.Aie = 0;
}
+
//
// Allow updates of the RTC registers
//
@@ -913,10 +941,10 @@ PcRtcSetWakeupTime (
if (!EfiAtRuntime ()) {
EfiReleaseLock (&Global->RtcLock);
}
+
return EFI_SUCCESS;
}
-
/**
Checks an 8-bit BCD value, and converts to an 8-bit value if valid.
@@ -964,8 +992,8 @@ ConvertRtcTimeToEfiTime (
IN RTC_REGISTER_B RegisterB
)
{
- BOOLEAN IsPM;
- UINT8 Century;
+ BOOLEAN IsPM;
+ UINT8 Century;
if ((Time->Hour & 0x80) != 0) {
IsPM = TRUE;
@@ -973,19 +1001,20 @@ ConvertRtcTimeToEfiTime (
IsPM = FALSE;
}
- Time->Hour = (UINT8) (Time->Hour & 0x7f);
+ Time->Hour = (UINT8)(Time->Hour & 0x7f);
if (RegisterB.Bits.Dm == 0) {
- Time->Year = CheckAndConvertBcd8ToDecimal8 ((UINT8) Time->Year);
- Time->Month = CheckAndConvertBcd8ToDecimal8 (Time->Month);
- Time->Day = CheckAndConvertBcd8ToDecimal8 (Time->Day);
- Time->Hour = CheckAndConvertBcd8ToDecimal8 (Time->Hour);
- Time->Minute = CheckAndConvertBcd8ToDecimal8 (Time->Minute);
- Time->Second = CheckAndConvertBcd8ToDecimal8 (Time->Second);
+ Time->Year = CheckAndConvertBcd8ToDecimal8 ((UINT8)Time->Year);
+ Time->Month = CheckAndConvertBcd8ToDecimal8 (Time->Month);
+ Time->Day = CheckAndConvertBcd8ToDecimal8 (Time->Day);
+ Time->Hour = CheckAndConvertBcd8ToDecimal8 (Time->Hour);
+ Time->Minute = CheckAndConvertBcd8ToDecimal8 (Time->Minute);
+ Time->Second = CheckAndConvertBcd8ToDecimal8 (Time->Second);
}
- if (Time->Year == 0xff || Time->Month == 0xff || Time->Day == 0xff ||
- Time->Hour == 0xff || Time->Minute == 0xff || Time->Second == 0xff) {
+ if ((Time->Year == 0xff) || (Time->Month == 0xff) || (Time->Day == 0xff) ||
+ (Time->Hour == 0xff) || (Time->Minute == 0xff) || (Time->Second == 0xff))
+ {
return EFI_INVALID_PARAMETER;
}
@@ -994,26 +1023,27 @@ ConvertRtcTimeToEfiTime (
// Century is 19 if RTC year >= 70,
// Century is 20 otherwise.
//
- Century = (UINT8) (PcdGet16 (PcdMinimalValidYear) / 100);
+ Century = (UINT8)(PcdGet16 (PcdMinimalValidYear) / 100);
if (Time->Year < PcdGet16 (PcdMinimalValidYear) % 100) {
Century++;
}
- Time->Year = (UINT16) (Century * 100 + Time->Year);
+
+ Time->Year = (UINT16)(Century * 100 + Time->Year);
//
// If time is in 12 hour format, convert it to 24 hour format
//
if (RegisterB.Bits.Mil == 0) {
- if (IsPM && Time->Hour < 12) {
- Time->Hour = (UINT8) (Time->Hour + 12);
+ if (IsPM && (Time->Hour < 12)) {
+ Time->Hour = (UINT8)(Time->Hour + 12);
}
- if (!IsPM && Time->Hour == 12) {
+ if (!IsPM && (Time->Hour == 12)) {
Time->Hour = 0;
}
}
- Time->Nanosecond = 0;
+ Time->Nanosecond = 0;
return EFI_SUCCESS;
}
@@ -1028,7 +1058,7 @@ ConvertRtcTimeToEfiTime (
**/
EFI_STATUS
RtcWaitToUpdate (
- UINTN Timeout
+ UINTN Timeout
)
{
RTC_REGISTER_A RegisterA;
@@ -1042,11 +1072,12 @@ RtcWaitToUpdate (
if (RegisterD.Bits.Vrt == 0) {
return EFI_DEVICE_ERROR;
}
+
//
// Wait for up to 0.1 seconds for the RTC to be ready.
//
- Timeout = (Timeout / 10) + 1;
- RegisterA.Data = RtcRead (RTC_ADDRESS_REGISTER_A);
+ Timeout = (Timeout / 10) + 1;
+ RegisterA.Data = RtcRead (RTC_ADDRESS_REGISTER_A);
while (RegisterA.Bits.Uip == 1 && Timeout > 0) {
MicroSecondDelay (10);
RegisterA.Data = RtcRead (RTC_ADDRESS_REGISTER_A);
@@ -1054,7 +1085,7 @@ RtcWaitToUpdate (
}
RegisterD.Data = RtcRead (RTC_ADDRESS_REGISTER_D);
- if (Timeout == 0 || RegisterD.Bits.Vrt == 0) {
+ if ((Timeout == 0) || (RegisterD.Bits.Vrt == 0)) {
return EFI_DEVICE_ERROR;
}
@@ -1072,20 +1103,21 @@ RtcWaitToUpdate (
**/
EFI_STATUS
RtcTimeFieldsValid (
- IN EFI_TIME *Time
+ IN EFI_TIME *Time
)
{
- if (Time->Year < PcdGet16 (PcdMinimalValidYear) ||
- Time->Year > PcdGet16 (PcdMaximalValidYear) ||
- Time->Month < 1 ||
- Time->Month > 12 ||
+ if ((Time->Year < PcdGet16 (PcdMinimalValidYear)) ||
+ (Time->Year > PcdGet16 (PcdMaximalValidYear)) ||
+ (Time->Month < 1) ||
+ (Time->Month > 12) ||
(!DayValid (Time)) ||
- Time->Hour > 23 ||
- Time->Minute > 59 ||
- Time->Second > 59 ||
- Time->Nanosecond > 999999999 ||
- (!(Time->TimeZone == EFI_UNSPECIFIED_TIMEZONE || (Time->TimeZone >= -1440 && Time->TimeZone <= 1440))) ||
- ((Time->Daylight & (~(EFI_TIME_ADJUST_DAYLIGHT | EFI_TIME_IN_DAYLIGHT))) != 0)) {
+ (Time->Hour > 23) ||
+ (Time->Minute > 59) ||
+ (Time->Second > 59) ||
+ (Time->Nanosecond > 999999999) ||
+ (!((Time->TimeZone == EFI_UNSPECIFIED_TIMEZONE) || ((Time->TimeZone >= -1440) && (Time->TimeZone <= 1440)))) ||
+ ((Time->Daylight & (~(EFI_TIME_ADJUST_DAYLIGHT | EFI_TIME_IN_DAYLIGHT))) != 0))
+ {
return EFI_INVALID_PARAMETER;
}
@@ -1108,12 +1140,13 @@ DayValid (
//
// The validity of Time->Month field should be checked before
//
- ASSERT (Time->Month >=1);
- ASSERT (Time->Month <=12);
- if (Time->Day < 1 ||
- Time->Day > mDayOfMonth[Time->Month - 1] ||
- (Time->Month == 2 && (!IsLeapYear (Time) && Time->Day > 28))
- ) {
+ ASSERT (Time->Month >= 1);
+ ASSERT (Time->Month <= 12);
+ if ((Time->Day < 1) ||
+ (Time->Day > mDayOfMonth[Time->Month - 1]) ||
+ ((Time->Month == 2) && (!IsLeapYear (Time) && (Time->Day > 28)))
+ )
+ {
return FALSE;
}
@@ -1130,7 +1163,7 @@ DayValid (
**/
BOOLEAN
IsLeapYear (
- IN EFI_TIME *Time
+ IN EFI_TIME *Time
)
{
if (Time->Year % 4 == 0) {
@@ -1165,7 +1198,7 @@ ConvertEfiTimeToRtcTime (
IN RTC_REGISTER_B RegisterB
)
{
- BOOLEAN IsPM;
+ BOOLEAN IsPM;
IsPM = TRUE;
//
@@ -1177,29 +1210,31 @@ ConvertEfiTimeToRtcTime (
}
if (Time->Hour >= 13) {
- Time->Hour = (UINT8) (Time->Hour - 12);
+ Time->Hour = (UINT8)(Time->Hour - 12);
} else if (Time->Hour == 0) {
Time->Hour = 12;
}
}
+
//
// Set the Time/Date values.
//
- Time->Year = (UINT16) (Time->Year % 100);
+ Time->Year = (UINT16)(Time->Year % 100);
if (RegisterB.Bits.Dm == 0) {
- Time->Year = DecimalToBcd8 ((UINT8) Time->Year);
- Time->Month = DecimalToBcd8 (Time->Month);
- Time->Day = DecimalToBcd8 (Time->Day);
- Time->Hour = DecimalToBcd8 (Time->Hour);
- Time->Minute = DecimalToBcd8 (Time->Minute);
- Time->Second = DecimalToBcd8 (Time->Second);
+ Time->Year = DecimalToBcd8 ((UINT8)Time->Year);
+ Time->Month = DecimalToBcd8 (Time->Month);
+ Time->Day = DecimalToBcd8 (Time->Day);
+ Time->Hour = DecimalToBcd8 (Time->Hour);
+ Time->Minute = DecimalToBcd8 (Time->Minute);
+ Time->Second = DecimalToBcd8 (Time->Second);
}
+
//
// If we are in 12 hour mode and PM is set, then set bit 7 of the Hour field.
//
- if (RegisterB.Bits.Mil == 0 && IsPM) {
- Time->Hour = (UINT8) (Time->Hour | 0x80);
+ if ((RegisterB.Bits.Mil == 0) && IsPM) {
+ Time->Hour = (UINT8)(Time->Hour | 0x80);
}
}
@@ -1217,13 +1252,14 @@ ConvertEfiTimeToRtcTime (
**/
INTN
CompareHMS (
- IN EFI_TIME *From,
- IN EFI_TIME *To
+ IN EFI_TIME *From,
+ IN EFI_TIME *To
)
{
if ((From->Hour > To->Hour) ||
- ((From->Hour == To->Hour) && (From->Minute > To->Minute)) ||
- ((From->Hour == To->Hour) && (From->Minute == To->Minute) && (From->Second > To->Second))) {
+ ((From->Hour == To->Hour) && (From->Minute > To->Minute)) ||
+ ((From->Hour == To->Hour) && (From->Minute == To->Minute) && (From->Second > To->Second)))
+ {
return 1;
} else if ((From->Hour == To->Hour) && (From->Minute == To->Minute) && (From->Second == To->Second)) {
return 0;
@@ -1247,37 +1283,37 @@ IsWithinOneDay (
IN EFI_TIME *To
)
{
- BOOLEAN Adjacent;
+ BOOLEAN Adjacent;
Adjacent = FALSE;
//
// The validity of From->Month field should be checked before
//
- ASSERT (From->Month >=1);
- ASSERT (From->Month <=12);
+ ASSERT (From->Month >= 1);
+ ASSERT (From->Month <= 12);
if (From->Year == To->Year) {
if (From->Month == To->Month) {
if ((From->Day + 1) == To->Day) {
- if ((CompareHMS(From, To) >= 0)) {
+ if ((CompareHMS (From, To) >= 0)) {
Adjacent = TRUE;
}
} else if (From->Day == To->Day) {
- if ((CompareHMS(From, To) <= 0)) {
+ if ((CompareHMS (From, To) <= 0)) {
Adjacent = TRUE;
}
}
} else if (((From->Month + 1) == To->Month) && (To->Day == 1)) {
- if ((From->Month == 2) && !IsLeapYear(From)) {
+ if ((From->Month == 2) && !IsLeapYear (From)) {
if (From->Day == 28) {
- if ((CompareHMS(From, To) >= 0)) {
+ if ((CompareHMS (From, To) >= 0)) {
Adjacent = TRUE;
}
}
} else if (From->Day == mDayOfMonth[From->Month - 1]) {
- if ((CompareHMS(From, To) >= 0)) {
- Adjacent = TRUE;
+ if ((CompareHMS (From, To) >= 0)) {
+ Adjacent = TRUE;
}
}
}
@@ -1285,8 +1321,9 @@ IsWithinOneDay (
(From->Month == 12) &&
(From->Day == 31) &&
(To->Month == 1) &&
- (To->Day == 1)) {
- if ((CompareHMS(From, To) >= 0)) {
+ (To->Day == 1))
+ {
+ if ((CompareHMS (From, To) >= 0)) {
Adjacent = TRUE;
}
}
@@ -1304,15 +1341,16 @@ GetCenturyRtcAddress (
VOID
)
{
- EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE *Fadt;
+ EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE *Fadt;
- Fadt = (EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE *) EfiLocateFirstAcpiTable (
- EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE
- );
+ Fadt = (EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE *)EfiLocateFirstAcpiTable (
+ EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE
+ );
if ((Fadt != NULL) &&
(Fadt->Century > RTC_ADDRESS_REGISTER_D) && (Fadt->Century < 0x80)
- ) {
+ )
+ {
return Fadt->Century;
} else {
return 0;
@@ -1332,21 +1370,21 @@ GetCenturyRtcAddress (
VOID
EFIAPI
PcRtcAcpiTableChangeCallback (
- IN EFI_EVENT Event,
- IN VOID *Context
+ IN EFI_EVENT Event,
+ IN VOID *Context
)
{
- EFI_STATUS Status;
- EFI_TIME Time;
- UINT8 CenturyRtcAddress;
- UINT8 Century;
+ EFI_STATUS Status;
+ EFI_TIME Time;
+ UINT8 CenturyRtcAddress;
+ UINT8 Century;
CenturyRtcAddress = GetCenturyRtcAddress ();
if ((CenturyRtcAddress != 0) && (mModuleGlobal.CenturyRtcAddress != CenturyRtcAddress)) {
mModuleGlobal.CenturyRtcAddress = CenturyRtcAddress;
- Status = PcRtcGetTime (&Time, NULL, &mModuleGlobal);
+ Status = PcRtcGetTime (&Time, NULL, &mModuleGlobal);
if (!EFI_ERROR (Status)) {
- Century = (UINT8) (Time.Year / 100);
+ Century = (UINT8)(Time.Year / 100);
Century = DecimalToBcd8 (Century);
DEBUG ((DEBUG_INFO, "PcRtc: Write 0x%x to CMOS location 0x%x\n", Century, mModuleGlobal.CenturyRtcAddress));
RtcWrite (mModuleGlobal.CenturyRtcAddress, Century);
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-26 00:22:20 +0000